TY - BOOK AU - Apostol,C. AU - Douglas,R.G. AU - Nagy,B.Sz- AU - Voiculescu,D. TI - Operator theory:advances and applications. Topics in modern operator theory. 5th. International Conference on Operator Theory, Timisoara and Herculane (Romania), 1980. OT2 SN - 3764312440 PY - 1981/// CY - Basel PB - Birkhauser-Verlag ER -